$c1:green;

div {
    $c2:yellow;

    background-color: $c1;
    color: $c2;

    h3 {
        color:$c2
    }
}

p {
    background-color: $c1;
    // color: $c2;
}

#p2 {
    background-color: $c1;
    // color: $c2;
}